Detachable horseshoe-calk.



M. HALLANAN.

DETACHABLE HORSESHOE CALK.

APPLlCATlON FILED OCT. 8, m5.

Patented Dec. 5, 1916.

2 SHEETS-SHEET I.

In ven tor.-

M. HALLANAN.

DETACHABLE HORSESHOE CALK.

APPLICATION FILED OCT. 8, 1915.

1,207,030. Patented Dec. 5, 1916.

2 SHEETS-SHEET 2.

In ven tor:

by WM tty UNITED STAT fl FATEN @F MICHAEL HALLANAN, OF NEW YORK, N. Y.

DETACHABLE HORSESI-IOE-CALK.

actose.

Application filed October 8, 1915.

To (4M w/tom it may comic r11 Be it known that I, MICHAEL IIALLANAN, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Detachable Horseshoe-Calks, of which the lollowing is a specification.

My invention relates to devices for attachment to horseshoes to prevent slipping and my objects are the production of a dc tachable calk structure which will be cheap to manufacture, easy to attach to any shoe while on the horse and which will reduce the liability to slip to aminimum.

In the drawing Figure 1 is a plan view of a simple form of my invention on a horseshoe; Fig. 2 a detail, sectional view on the line of Fig. 1; Fig. 3 a sectional view showing a method of calk attachment; Fig. l the preferred form of my invention; and Fig. 5 an end view of the structure oi. Fig. el.

The horseshoe 1 may be liat or provided with the usual toe and heel calks 2.

In its simplest form my anti-slip )ing device consists of a pair of plates 33 carrying the sharp calks l, which are preferably secured to the plates at 5 in such man ner that they may be readily removed and replaced by new ones when dull although they may be made integral with the plates if desired. Each plate has a lipped edge (5 so that the horseshoe 1 may lit into the angle thus formed. An expansion bolt 8 enters the sockets 9 on the plates with right and leftthreads to force the plates apart and against the shoe 1. This bolt should be located a suflicient distance from the hoof when the calk is on a horse to clear the frog. The lipped edge of the plate 3 may be single as shown in Fig. 2 in which the lip is located on the lower or calk side of the shoe and plate, or double as shown in Fig. 3 in which event the shoe fits into the groove 7.-

In order that shoes of varying thickness as well as varying width may be fitted with the same anti-slipping device, thus reducing the number of sizes which would otherwise have to be made I prefer the form of device shown in Figs. 4 and 5. The plates are made in two parts, the body 10 carrying the calks 4: and the screw block 11 with the Specification of Letters Patent.

Patented Dec. 5, 1916.

Serial No. 54,778.

lip A pin 13 011 the body enters a hole in the block 1,1 to maintain the two pieces in proper relation. draw the two parts of the plate together with the shoe between the body 10 and the lipped block 11 so that the plate is firmly clipped to the shoe in the groove thus formed. The expansion bolt enters a tapped hole in the block 11.

In use a pair of plates with their calks are joined by the expansion bolt and placed inside the shoe with the calks down so they will bear on the ground. On expanding by m ansot' the bolt the plates are forced apart and into locking relation with the shoe. They cannot move upward, or inward, toward the hoof by reason oil? the lower lip, and, where two lips are used they cannot be pulled off the hoof. Neither can they move forward or backward by reason of the curvature of the shoe and the fact that they engage the concave portion thereof. The device may thus be quickly affixed to a horses 'li'oot when the need arises and as quickly removed when the need has passed. As the expansion bolt may be used to separate the plates to any desired extent the same device-will fit shoes of widely varying widths, and the two part plates enable shoes of difterent thicknesses to be fitted. As the calks may be renewed when worn the device may be used indefinitely without loss of ciliciency by simply inserting new ealks.

In this device the entire pressure and weight is borne by the shoe and there is nothing in contact with the horses boot to injure or lame it.

I claim 2- 1. A detachable horseshoe calk comprising a pair of oppositely disposed plates, each plate composed of two superimposed members, calks carried by one of said members, a socket in the other member, means for securing the two members of a plate together and an expansion bolt engaging the sockets whereby the plates may be forced into looking engagement with the inside edges of a shoe.

2. A detachable horseshoe calk comprising a pair of oppositely disposed plates, each plate composed of two members, a positioning pin on one member, the other being aper- Screws 14.1& serve to sockets whereby the plates may be forced tured to receive it, calks carried by one meni- In testimony whereof I have aflixed my her, a socket in the other member, means for signature in presence of two Witnesses.

securing the two 11161 11b61$ of a pl ate to- MICHAEL HALLANAN gether and an expansion bolt engaging the Witnesses ROBERT B. KILLGQRE,

into locking engagement with the inside MAY M. LIPP.

edges of a horseshoe.

Copies of this patent may be obtained for five cents each, by afich'essing the Commissioner of Patents.

Washington, 1). C. 

